Previous meetings

 

The history of CIPAC (Collaborative International Pesticides Analytical Council (Limited)) began in 1952 when at the IIIrd International Congress of Crop Protection in Paris, a resolution was passed recommending the appointment of a committee of official analytical chemists to prepare standardised methods of analysis for pesticide formulations.

At the next Congress in Hamburg in 1957 a European Committee was set up, consisting of official experts from Belgium, France, Germany, Great Britain, Italy, The Netherlands and Switzerland.
This action was mainly the work of Dr R.de B. Ashworth of the former Plant Pathology Laboratory at Harpenden, who had been also the 'auctor intellectualis'.
After a survey period the first results of the work of the committee appeared in the early 1960's.
They consisted of standardised methods of analysis for pesticide formulations which were published in the FAO Plant Protection Bulletin.

Progress  was steady and in 1970 CIPAC Handbook Vol. 1 was produced with sections on analytical methods, physical tests, reagents and the preparation of pure pesticides.

In the meantime, CIPAC had lost its European confinement and had evolved to become an organisation with a world-wide participation which was recognised by other international bodies such as FAO, WHO, AOAC, UNIDO and GIFAP, now GCPF. CIPAC methods formed the basis of FAO specifications and CIPAC and AOAC agreed to co-ordinate their work in the field of pesticide formulation analysis, and to recognise and use each other's methods.

In 1971 CIPAC was incorporated as a limited company in the UK, and as a non-profit making organisation, was registered under the Charities Act. Since then CIPAC has progressed steadily to its present leading position in the area of standardisation of methods for analysis for pesticide formulations, both chemical and physical. Methods have been published at regular intervals. Their use is required by registration authorities, the European Union, and by FAO and WHO specifications.

 

return icon

 

Failed to start the session because headers have already been sent by "D:\www\www83\plugins\system\debug\src\Extension\Debug.php" at line 377. (500 Whoops, looks like something went wrong.)

RuntimeException RuntimeException

HTTP 500 Whoops, looks like something went wrong.

Failed to start the session because headers have already been sent by "D:\www\www83\plugins\system\debug\src\Extension\Debug.php" at line 377.

Exceptions 2

RuntimeException

  1. if ($this->isActive()) {
  2. throw new \RuntimeException('Failed to start the session: already started by PHP.');
  3. }
  4. if (ini_get('session.use_cookies') && headers_sent($file, $line)) {
  5. throw new \RuntimeException(
  6. sprintf('Failed to start the session because headers have already been sent by "%s" at line %d.', $file, $line)
  7. );
  8. }
  9. if (!session_start()) {
  1. $this->setId($session_clean);
  2. $cookie->set($session_name, '', ['expires' => time() - 3600 ]);
  3. }
  4. }
  5. parent::start();
  6. // Try loading data from the session
  7. if (!empty($_SESSION['joomla'])) {
  8. $this->data = unserialize(base64_decode($_SESSION['joomla']));
  9. }
  1. {
  2. if ($this->isStarted()) {
  3. return;
  4. }
  5. $this->store->start();
  6. $this->setState(SessionState::ACTIVE);
  7. // Initialise the session
  8. $this->setCounter();
  1. * @since 1.0
  2. */
  3. public function has($name)
  4. {
  5. if (!$this->isActive()) {
  6. $this->start();
  7. }
  8. return $this->store->has($name);
  9. }
  1. $name = $args[2] . '.' . $name;
  2. }
  3. }
  4. if (parent::has($name)) {
  5. // Parent is used because of b/c, can be changed in Joomla 6
  6. return parent::get($name, $default);
  7. }
  8. /*
Session->get() in D:\www\www83\libraries\src\Factory.php (line 372)
  1. __CLASS__
  2. ),
  3. E_USER_DEPRECATED
  4. );
  5. $instance = self::getApplication()->getSession()->get('user');
  6. if (\is_null($id)) {
  7. if (!($instance instanceof User)) {
  8. $instance = User::getInstance();
  9. }
  1. {
  2. $renderer = $this->_doc->loadRenderer('module');
  3. $buffer = '';
  4. $app = Factory::getApplication();
  5. $user = Factory::getUser();
  6. $frontediting = ($app->isClient('site') && $app->get('frontediting', 1) && !$user->guest);
  7. $menusEditing = ($app->get('frontediting', 1) == 2) && $user->authorise('core.edit', 'com_menus');
  8. foreach (ModuleHelper::getModules($position) as $mod) {
  9. $moduleHtml = $renderer->render($mod, $params, $content);
ModulesRenderer->render() in D:\www\www83\libraries\src\Document\HtmlDocument.php (line 578)
  1. $cbuffer[$hash] = $tmpdata;
  2. $cache->store($cbuffer, 'cbuffer_' . $type);
  3. } else {
  4. $this->setBuffer($renderer->render($name, $attribs, null), $type, $name, $title);
  5. }
  6. return parent::$_buffer[$type][$name][$title];
  7. }
HtmlDocument->getBuffer() in D:\www\www83\libraries\src\Document\HtmlDocument.php (line 897)
  1. $replace = [];
  2. $with = [];
  3. foreach ($this->_template_tags as $jdoc => $args) {
  4. $replace[] = $jdoc;
  5. $with[] = $this->getBuffer($args['type'], $args['name'], $args['attribs']);
  6. }
  7. return str_replace($replace, $with, $this->_template);
  8. }
  9. }
HtmlDocument->_renderTemplate() in D:\www\www83\libraries\src\Document\HtmlDocument.php (line 650)
  1. if (\array_key_exists('csp_nonce', $params) && $params['csp_nonce'] !== null) {
  2. $this->cspNonce = $params['csp_nonce'];
  3. }
  4. $data = $this->_renderTemplate();
  5. parent::render($caching, $params);
  6. return $data;
  7. }
HtmlDocument->render() in D:\www\www83\libraries\src\Document\ErrorDocument.php (line 139)
  1. $this->debug = $params['debug'] ?? false;
  2. $this->error = $this->_error;
  3. $params['file'] = 'error.php';
  4. return parent::render($cache, $params);
  5. }
  6. /**
  7. * Render the backtrace
  8. *
  1. ob_end_clean();
  2. }
  3. $this->getDocument()->setTitle(Text::_('Error') . ': ' . $error->getCode());
  4. return $this->getDocument()->render(
  5. false,
  6. [
  7. 'template' => $template->template,
  8. 'directory' => JPATH_THEMES,
  9. 'debug' => JDEBUG,
  1. 'subject' => $app,
  2. 'document' => $renderer->getDocument(),
  3. ])
  4. );
  5. $data = $renderer->render($error);
  6. // If nothing was rendered, just use the message from the Exception
  7. if (empty($data)) {
  8. $data = $error->getMessage();
  9. }
ExceptionHandler::render() in D:\www\www83\libraries\src\Exception\ExceptionHandler.php (line 76)
  1. * @since 3.10.0
  2. */
  3. public static function handleException(\Throwable $error)
  4. {
  5. static::logException($error);
  6. static::render($error);
  7. }
  8. /**
  9. * Render the error page based on an exception.
  10. *
ExceptionHandler::handleException() in D:\www\www83\libraries\src\Application\CMSApplication.php (line 334)
  1. );
  2. // Trigger the onError event.
  3. $this->dispatchEvent('onError', $event);
  4. ExceptionHandler::handleException($event->getError());
  5. }
  6. // Trigger the onBeforeRespond event.
  7. $this->dispatchEvent(
  8. 'onBeforeRespond',
CMSApplication->execute() in D:\www\www83\index.php (line 35)
  1. // Run the application - All executable code should be triggered through this file
  2. require_once dirname(__FILE__) . '/includes/app.php';
  3. $app = JFactory::getApplication('site');
  4. $app->execute();

RuntimeException

Failed to start the session because headers have already been sent by "D:\www\www83\plugins\system\debug\src\Extension\Debug.php" at line 377.

  1. if ($this->isActive()) {
  2. throw new \RuntimeException('Failed to start the session: already started by PHP.');
  3. }
  4. if (ini_get('session.use_cookies') && headers_sent($file, $line)) {
  5. throw new \RuntimeException(
  6. sprintf('Failed to start the session because headers have already been sent by "%s" at line %d.', $file, $line)
  7. );
  8. }
  9. if (!session_start()) {
  1. $this->setId($session_clean);
  2. $cookie->set($session_name, '', ['expires' => time() - 3600 ]);
  3. }
  4. }
  5. parent::start();
  6. // Try loading data from the session
  7. if (!empty($_SESSION['joomla'])) {
  8. $this->data = unserialize(base64_decode($_SESSION['joomla']));
  9. }
  1. {
  2. if ($this->isStarted()) {
  3. return;
  4. }
  5. $this->store->start();
  6. $this->setState(SessionState::ACTIVE);
  7. // Initialise the session
  8. $this->setCounter();
  1. * @since 1.0
  2. */
  3. public function has($name)
  4. {
  5. if (!$this->isActive()) {
  6. $this->start();
  7. }
  8. return $this->store->has($name);
  9. }
  1. $name = $args[2] . '.' . $name;
  2. }
  3. }
  4. if (parent::has($name)) {
  5. // Parent is used because of b/c, can be changed in Joomla 6
  6. return parent::get($name, $default);
  7. }
  8. /*
Session->get() in D:\www\www83\libraries\src\Factory.php (line 372)
  1. __CLASS__
  2. ),
  3. E_USER_DEPRECATED
  4. );
  5. $instance = self::getApplication()->getSession()->get('user');
  6. if (\is_null($id)) {
  7. if (!($instance instanceof User)) {
  8. $instance = User::getInstance();
  9. }
  1. *
  2. * @since 3.2
  3. */
  4. protected function initialiseApp($options = [])
  5. {
  6. $user = Factory::getUser();
  7. // If the user is a guest we populate it with the guest user group.
  8. if ($user->guest) {
  9. $guestUsergroup = ComponentHelper::getParams('com_users')->get('guest_usergroup', 1);
  10. $user->groups = [$guestUsergroup];
SiteApplication->initialiseApp() in D:\www\www83\libraries\src\Application\SiteApplication.php (line 237)
  1. * @since 3.2
  2. */
  3. protected function doExecute()
  4. {
  5. // Initialise the application
  6. $this->initialiseApp();
  7. // Mark afterInitialise in the profiler.
  8. JDEBUG ? $this->profiler->mark('afterInitialise') : null;
  9. // Route the application
SiteApplication->doExecute() in D:\www\www83\libraries\src\Application\CMSApplication.php (line 304)
  1. $this->sanityCheckSystemVariables();
  2. $this->setupLogging();
  3. $this->createExtensionNamespaceMap();
  4. // Perform application routines.
  5. $this->doExecute();
  6. // If we have an application document object, render it.
  7. if ($this->document instanceof \Joomla\CMS\Document\Document) {
  8. // Render the application output.
  9. $this->render();
CMSApplication->execute() in D:\www\www83\index.php (line 35)
  1. // Run the application - All executable code should be triggered through this file
  2. require_once dirname(__FILE__) . '/includes/app.php';
  3. $app = JFactory::getApplication('site');
  4. $app->execute();

Stack Traces 2

[2/2] RuntimeException
RuntimeException:
Failed to start the session because headers have already been sent by "D:\www\www83\plugins\system\debug\src\Extension\Debug.php" at line 377.

  at D:\www\www83\libraries\vendor\joomla\session\src\Storage\NativeStorage.php:454
  at Joomla\Session\Storage\NativeStorage->start()
     (D:\www\www83\libraries\src\Session\Storage\JoomlaStorage.php:313)
  at Joomla\CMS\Session\Storage\JoomlaStorage->start()
     (D:\www\www83\libraries\vendor\joomla\session\src\Session.php:396)
  at Joomla\Session\Session->start()
     (D:\www\www83\libraries\vendor\joomla\session\src\Session.php:327)
  at Joomla\Session\Session->has()
     (D:\www\www83\libraries\src\Session\Session.php:194)
  at Joomla\CMS\Session\Session->get()
     (D:\www\www83\libraries\src\Factory.php:372)
  at Joomla\CMS\Factory::getUser()
     (D:\www\www83\libraries\src\Document\Renderer\Html\ModulesRenderer.php:46)
  at Joomla\CMS\Document\Renderer\Html\ModulesRenderer->render()
     (D:\www\www83\libraries\src\Document\HtmlDocument.php:578)
  at Joomla\CMS\Document\HtmlDocument->getBuffer()
     (D:\www\www83\libraries\src\Document\HtmlDocument.php:897)
  at Joomla\CMS\Document\HtmlDocument->_renderTemplate()
     (D:\www\www83\libraries\src\Document\HtmlDocument.php:650)
  at Joomla\CMS\Document\HtmlDocument->render()
     (D:\www\www83\libraries\src\Document\ErrorDocument.php:139)
  at Joomla\CMS\Document\ErrorDocument->render()
     (D:\www\www83\libraries\src\Error\Renderer\HtmlRenderer.php:70)
  at Joomla\CMS\Error\Renderer\HtmlRenderer->render()
     (D:\www\www83\libraries\src\Exception\ExceptionHandler.php:142)
  at Joomla\CMS\Exception\ExceptionHandler::render()
     (D:\www\www83\libraries\src\Exception\ExceptionHandler.php:76)
  at Joomla\CMS\Exception\ExceptionHandler::handleException()
     (D:\www\www83\libraries\src\Application\CMSApplication.php:334)
  at Joomla\CMS\Application\CMSApplication->execute()
     (D:\www\www83\index.php:35)                
[1/2] RuntimeException
RuntimeException:
Failed to start the session because headers have already been sent by "D:\www\www83\plugins\system\debug\src\Extension\Debug.php" at line 377.

  at D:\www\www83\libraries\vendor\joomla\session\src\Storage\NativeStorage.php:454
  at Joomla\Session\Storage\NativeStorage->start()
     (D:\www\www83\libraries\src\Session\Storage\JoomlaStorage.php:313)
  at Joomla\CMS\Session\Storage\JoomlaStorage->start()
     (D:\www\www83\libraries\vendor\joomla\session\src\Session.php:396)
  at Joomla\Session\Session->start()
     (D:\www\www83\libraries\vendor\joomla\session\src\Session.php:327)
  at Joomla\Session\Session->has()
     (D:\www\www83\libraries\src\Session\Session.php:194)
  at Joomla\CMS\Session\Session->get()
     (D:\www\www83\libraries\src\Factory.php:372)
  at Joomla\CMS\Factory::getUser()
     (D:\www\www83\libraries\src\Application\SiteApplication.php:565)
  at Joomla\CMS\Application\SiteApplication->initialiseApp()
     (D:\www\www83\libraries\src\Application\SiteApplication.php:237)
  at Joomla\CMS\Application\SiteApplication->doExecute()
     (D:\www\www83\libraries\src\Application\CMSApplication.php:304)
  at Joomla\CMS\Application\CMSApplication->execute()
     (D:\www\www83\index.php:35)